Renewable Energy Resources
Chapter 5- Section 2
Solar Energy
Advantages:
- can warm rooms that are exposed by sun
- you can't run out and continually produces energy
- clean and no pollution
Disadvantages:
- works less when cloudy and not at all at night
- can use batteries, but difficult to store a lot
- if batteries are worn out they can pollute environment
Wind Energy
Advantages:
- used to grind grain and pump water
- nonpolluting and free
- little harm to environment
- can be used as electricity with strong winds
Disadvantages:
- have to have wind in order to work
- wind has to be at an appropriate speed, if not won't have energy
Hydroelectric Energy
Advantages:
- produced by running water
- turbines turn to make electricity
Disadvantages:
- has little additional cost
- sediment and downstream erosion occurs more often
Geothermal Energy
Advantages:
- you can find hot dry rocks about anywhere
- steam makes turbines go and make electricity
Disadvantages:
- hot lava can possibly erode in the process
- dangerous to find
Biomass Energy
Advantages:
- easy to find and produce - also gives you heat in the process
- gives all the garbage we produce a purpose
Disadvantages:
- gases and small particles are released when burned-- pollution
- burning wastes can cause toxic ash residue